Re: [Sursound] question about simple equation

2012-03-22 Thread Martin Leese
Richard Lee wrote: > You think I'm joking? IIRC it was GV Malham, in 2006, who pointed out that > Redmond did indeed have such a patent application. Looks like application number 20060291666, visit: http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-

Re: [Sursound] question about simple equation

2012-03-21 Thread Richard Lee
> Richard, you gave me quite a chuckle there Microsoft software invention > indeed! You think I'm joking? IIRC it was GV Malham, in 2006, who pointed out that Redmond did indeed have such a patent application. Giuseppe, you should know that inscrutable Orientals have no sense of humour !

Re: [Sursound] question about simple equation

2012-03-21 Thread Giuseppe Silvi
; Thank you Richard. >> >> Best Regards >> >> >> On 17/mar/2012, at 17:00, sursound-requ...@music.vt.edu wrote: >> >>> Message: 1 >>> Date: Fri, 16 Mar 2012 13:37:48 -0400 >>> From: Daniel Courville >>> Subject: Re: [

Re: [Sursound] question about simple equation

2012-03-20 Thread Neil Waterman
bally, you're combining three channels into two channels, so yes, your output can get over 1, which is a problem at the DAC, but not internally in Max. - Daniel Message: 3 Date: Sat, 17 Mar 2012 05:24:39 -0000 From: Richard Lee Subject: Re: [Sursound] question about simple equation To: '

Re: [Sursound] question about simple equation

2012-03-20 Thread Giuseppe Silvi
qrt2 * W) + X); // without clipping >> S = Y > > Remember that, globally, you're combining three channels into two > channels, so yes, your output can get over 1, which is a problem at the > DAC, but not internally in Max. > > - Daniel > > > Message: 3 >

Re: [Sursound] question about simple equation

2012-03-16 Thread Fons Adriaensen
On Sat, Mar 17, 2012 at 05:24:39AM -, Richard Lee wrote: > This is an instance of a patented Microsoft software invention called a > Volume Control. There are also ancient hardware implementations of this > useful device which can be used to avoid clipping by those versed in the art. >

Re: [Sursound] question about simple equation

2012-03-16 Thread Richard Lee
> cardioid = 1/2 ( sqrt2 W + X ) > but for Mid-Side decoding from B-Format, where M is the same cardioid > component, I often find this equation: > M = sqrt2 W + X This is an instance of a patented Microsoft software invention called a Volume Control. There are also ancient hardware implement

Re: [Sursound] question about simple equation

2012-03-16 Thread Daniel Courville
Le 12-03-15 20:01, Giuseppe Silvi a écrit: >I think the W component of ST450 comes out scaled by sqrt2. It's -3 dB, revsqrt(2), on the W at the output of the ST450. So, yes, boosting the W by 3 dB, sqrt(2), at the input of your processor makes sense. Anyway, it's the way I do it. >// M = (sqrt2

Re: [Sursound] question about simple equation

2012-03-15 Thread Giuseppe Silvi
need to > do that also when using 'real' microphones for MS - in general they won't > have the same sensitivity. > > Ciao, > > -- > FA > > Vor uns liegt ein weites Tal, die Sonne scheint - ein Glitzerstrahl. > > > >

Re: [Sursound] question about simple equation

2012-03-15 Thread Jörn Nettingsmeier
On 03/15/2012 03:16 PM, Giuseppe Silvi wrote: Hi I'm Giuseppe from Rome, i apologize if my question could be trivial, but I have this problem in my mind to be solved. If cardioid pattern is descrbed by equation: cardioid = 1/2 ( 1 + cos Theta) this is a fact. and W equation is: W = 1 / sq

Re: [Sursound] question about simple equation

2012-03-15 Thread Fons Adriaensen
On Thu, Mar 15, 2012 at 03:16:05PM +0100, Giuseppe Silvi wrote: > If cardioid pattern is descrbed by equation: > > cardioid = 1/2 ( 1 + cos Theta) > > and W equation is: > > W = 1 / sqrt2 > > replacing numbers with letters the equation should be this: > > cardioid = 1/2 ( sqrt2 W + X ) > >

[Sursound] question about simple equation

2012-03-15 Thread Giuseppe Silvi
Hi I'm Giuseppe from Rome, i apologize if my question could be trivial, but I have this problem in my mind to be solved. If cardioid pattern is descrbed by equation: cardioid = 1/2 ( 1 + cos Theta) and W equation is: W = 1 / sqrt2 replacing numbers with letters the equation should be this: c